Low‐temperature photoluminescence from CdTe grown by hot‐wall epitaxy on GaAs
作者:
K. Lischka,
T. Schmidt,
A. Pesek,
H. Sitter,
期刊:
Applied Physics Letters
(AIP Available online 1989)
卷期:
Volume 55,
issue 12
页码: 1220-1222
ISSN:0003-6951
年代: 1989
DOI:10.1063/1.101660
出版商: AIP
数据来源: AIP
摘要:
The low‐temperature near‐band‐edge photoluminescence of thick (d≊36 &mgr;m) (100)CdTe epilayers grown on (100)GaAs substrates is investigated. Besides a dominating bound exciton emission, evidence for free‐exciton emission (n=1 and 2) and two electron transitions (TETs) of donor‐bound excitons is found. The defect involved in the TET is most likely a gallium‐related donor. This is concluded from the TET line wavelength adopting recent bulk CdTe TET data. A new emission line at 781.4 nm (1586.7 meV) is observed. It is tentatively assigned to a TET of a free exciton.
点击下载:
PDF
(300KB)
返 回